# mubiao = "PythonGoJ123avaS121crip85tPHP"
# mubiao_new = mubiao.lower()
# zaqizaba = "123qwer123qwer11"
# 统计特定字符的数量
# result = 0
# for i in mubiao_new:
#     if i == "i":
#         result += 1
#
# print(result)

# # 统计每个字母出现的次数
# an = {}
# count = 1
# for i in zaqizaba:
#     if i not in an:
#         an[i] = 1
#     else:
#         an[i] += 1
# print(an)
#
# for key, value in an.items():
#     print("{}:{}".format(key, value))
